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header-product Surge Protection Device HiSmart NV821754 4‑pole 1000 VDC
83.49 €

Surge Protection Device HiSmart NV821754 4‑pole 1000 VDC

HiSmart NV821754 4‑pole 1000 VDC Surge Protector Photo 1
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Surge Protection Device HiSmart NV821754 4‑pole 1000 VDC

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Surge Protection Device HiSmart NV821754 4‑pole 1000 VDC

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Short description

HiSmart NV821754 is a 4‑pole DC surge protection device rated for 1000 VDC. Designed to protect DC electrical systems and equipment from voltage spikes and transient overvoltages, it connects in-line with the DC supply. Suitable for solar, battery and industrial DC installations, it helps prevent damage and reduce downtime by diverting surge energy away from sensitive components.
Available for order: 5 pcs.
Warranty: 2 Years
SKU: 10841786
Manufacturer: HiSmart
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Cheapest delivery:

Venipak Locker LV

Pick-up points

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Cost

1.89 €

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Customer service center
2b. Kengaraga str., Riga, Latvia, LV-1063
02.07.2026 {{selectedOffer.officeDeliveryString}}
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Courier Delivery Please note that in case of a large parcel additional delivery costs may apply!
07.07.2026 {{selectedOffer.courierDeliveryString}}
From 4.99 €
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Venipak Locker LV / Latvijas Pasts pakomāts / Unisend LV / DPD Paku skapis / Omniva LV / Venipak Pickup LV / Latvijas Pasts nodaļa
07.07.2026 {{selectedOffer.parcelStationDeliveryString}}
From 1.89 €
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All payment Methods:
Bank transfer, Bank cards on-line, Apple Pay, Google Pay, Installment
36 months installment: from 2.32 euros per month
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Product information

Description

HiSmart NV821754 is a 4-pole surge protection device for DC systems, rated for 1000 V DC. It is designed to protect photovoltaic arrays, battery systems and industrial DC equipment from transient overvoltages caused by indirect lightning strikes and switching events. The device mounts on a 35 mm DIN rail and connects in-line with the DC supply to divert surge energy away from sensitive components.

Advantages

The NV821754 offers Class B protection with a nominal discharge current of 60 kA and a maximum discharge current of 100 kA, providing a high level of surge attenuation for DC systems up to 1000 V. Its response time of under 25 ns and a voltage protection level up to 5 kV ensure rapid clamping of transient overvoltages. The compact design (107 x 90 x 67 mm) and DIN-rail mounting simplify installation in solar combiner boxes and DC switchgear. The unit is manufactured to IEC 61643-1 standards and carries CE marking.

Suitable for

  • Photovoltaic (PV) arrays and solar inverter DC inputs
  • Battery energy storage systems (BESS)
  • Wind power DC equipment and converters
  • Industrial DC power distribution and control panels

Key specifications

  • Poles: 4 (4P)
  • Class: B
  • Maximum continuous operating voltage (Uc): 1000 V DC
  • Nominal discharge current (In): 60 kA
  • Maximum discharge current (Imax): 100 kA
  • Voltage protection level (Up): ≤ 5 kV
  • Response time: < 25 ns
  • Frequency: 50/60 Hz
  • Operating temperature: -40 °C to +85 °C
  • Relative humidity (at 25 °C): < 95%
  • Installation: 35 mm DIN rail
  • Wires cross-section: 4–6 mm²
  • Dimensions: 107 x 90 x 67 mm
  • Standards: IEC 61643-1, CE
  • Warranty: 24 months

How to use

Mount the HiSmart NV821754 on a 35 mm DIN rail inside the DC distribution enclosure or combiner box. Connect the device in-line with the DC positive and negative conductors according to the system wiring diagram and local electrical regulations. Ensure conductor cross-sections between 4 and 6 mm² and tighten terminals to the recommended torque. Verify polarity and correct routing of surge paths before energizing the system. Perform a visual inspection and functional checks after installation and after any recorded surge event.

Usage recommendations

Install the surge protection device as close as practical to the protected equipment or DC input terminals to minimise lead length. Combine the NV821754 with proper system grounding and equipotential bonding. Replace the device if it shows visible damage or after exposure to a surge event that exceeds rated performance; follow local safety standards when servicing.

Description

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Customer reviews

Customer questions

FAQ

How much does the HiSmart NV821754 4‑pole 1000 VDC Surge Protector cost, and is it available for purchase?

The price is 83.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 5 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 02.07.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

What payment options are available?

AiO.lv offers several payment methods: Bank transfer, Bank cards on-line, Apple Pay, Google Pay, Installment. All transactions are 100% secure and encrypted.

Can HiSmart NV821754 4‑pole 1000 VDC Surge Protector be purchased with a lease?

Yes, the purchase is available both on credit and with an interest-free installment plan. We work with leading banks and leasing companies in Latvia, allowing you to make your purchase on convenient terms — with a minimal down payment and a repayment period from 3 to 36 months. You can apply for credit or installments for the HiSmart NV821754 4‑pole 1000 VDC Surge Protector online, and the application process is as simple as possible:
  • Select the product on the website and add it to your cart;
  • When placing your order, choose the payment method “Installments”;
  • Fill in the required details for the lending partner;
  • Receive a decision within a few minutes.
For more information about available payment options, interest-free installment terms, and credit conditions in Latvia, please visit the Payment page.

Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

What is the warranty period?

All HiSmart products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized HiSmart service centers and through AiO.lv

Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. We will assist with consultation, warranty claim processing, and coordination with certified service centers.
warranty
14-Day Return Policy We are confident in our quality, but if the purchase doesn’t fit — you have 14 days to return the product with peace of mind.
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Quality Since 2008 AiO.lv has been on the market for over 18 years and has earned trust — with more than 6000 genuine positive reviews on Google.